title: Long periods in space flight may take physiological, psychological toll among crew.
authors.forename: J
authors.initials: J
authors.lastname: Smith
mesh_terms: D000223:Adaptation, Psychological; D001010:Anxiety, Separation; D006439:Hemodynamics; D006801:Humans; D007109:Immunity; D008889:Military Personnel / Q000523:psychology; D013026:Space Flight